i accidentally uninstalled my graphics card

As I am just getting deeper into this I'm geting information to pass along to you and so that in case others may have the same problem they can access the same data I am giving you through this thread.Įrror Message: 'The device cannot start. I purchased nvidia geforce fx 5500 video card.First i uninstalled the factory intel extreme video driver then installed the nvidia card.Everything worked,for a wile,then my computer stared restarting on its own(i had this problem a few weeks ago and it was a bad power cord)so i replaced the power cord.But when i started the computer nvidia didnt start on its own,i open divice manager it shows a yellow ! near nvidia card,so i go to its shortcut on the desktop and it doesnt open,i try uninstalling it,took card out of the pci,then reinstalling it,same thing still doesnt work,so aggervated i pulled it back out and try to reinstall the factory(internal)video card wich is (Intel extreme)it doesnt install nor does it update.So i went back to the store returned it and got a new card(same kind)and same thing wont work or update.when i try to update it it says computer cant find a better match for your hardware?And somehow(dont remember how)i got a code 10.my screen still works,things are blurry but i can still use my computer?can anyone help?could i have messed up my mother board?Thanks for all your time.

I accidentally uninstalled my graphics card